Intelligent CISO Issue 28 | Page 41

EXPERT OPINION Ransomware: Here today, here tomorrow Cybercriminals do not take a break when a pandemic hits, and with many networks increasingly vulnerable as more people work from home, now is the time to try and avert threats. Derek Manky, Chief Security Insights and Global Threat Alliances, Fortinet, explains how to improve your cybersecurity. Derek Manky, Chief Security Insights and Global Threat Alliances, Fortinet ith all our energy W of the past several weeks focused on adapting to the global crisis, security may have taken a back seat. But cybercriminals haven’t forgotten. Networks have been turned inside out and they have been very actively targeting remote workers that used to be protected by the network perimeter with fake COVID-19-related material and other social networking attacks. And they have been probing these new network environments for vulnerabilities in the hope that they may have been pulled together too quickly to have implemented adequate security protections and controls. FortiGuard Labs has been actively monitoring the threat landscape during this time and we have seen a significant increase in threats targeting individuals through phishing and infected websites. Email attachments containing infected and malicious content explains why we recorded a 131% increase in viruses during March of this year. It also explains why we have seen a reduction in traditional attacks as cybercriminals shift focus. Incidents of ransomware are likely to rise as cybercriminals look to use compromised end-user devices as a conduit back into a core network, that may not be being watched as carefully as it once was. We take a close look at the level of threat that ransomware poses and what organisations should do about it now, while their networks are still in a state of flux. The ransomware landscape today Among the types of attacks that keep security professionals up at night is ransomware, and the threat shows no signs of slowing down. When it comes to defending against ransomware, security tools are only as good as the team that manages them. Everything from configuration errors to solution sprawl can weaken the power of enterprise cybersecurity defences to detect and prevent cyberattacks. However, especially when it comes to ransomware, the biggest problem is the human factor. Why cyberhygiene and the ‘human factor’ continue to be primary concerns for ransomware When it comes to cyberhygiene, awareness is not the problem – it is rooted in human behaviour. But awareness and action are two very different things. In addition to broad brush attacks that target everyone, emails are being cleverly written to target specific types of individuals at an organisation, either directly or through www.intelligentciso.com | Issue 28 41